/Engine/Source/Runtime/Engine/Public/WorldPartition/HLOD/HLODLayer.h
const [TSubclassOf](API\Runtime\CoreUObject\Templates\TSubclassOf)< [UWorldPartitionHLODModifier](API\Runtime\Engine\WorldPartition\HLOD\UWorldPartitionHLODModifier) > GetHLODModifierClass() const